9473172981 has 8 divisors (see below), whose sum is σ = 12650604864. Its totient is φ = 6305594880.

The previous prime is 9473172979. The next prime is 9473172983. The reversal of 9473172981 is 1892713749.

9473172981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9473172979) and next prime (9473172983).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9473172981 - 2¹ = 9473172979 is a prime.

It is a super-2 number, since 2×9473172981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9473172983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2461201 + ... + 2465046.

It is an arithmetic number, because the mean of its divisors is an integer number (1581325608).

Almost surely, 2^9473172981 is an apocalyptic number.

It is an amenable number.

9473172981 is a deficient number, since it is larger than the sum of its proper divisors (3177431883).

9473172981 is a wasteful number, since it uses less digits than its factorization.

9473172981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926891.

The product of its digits is 762048, while the sum is 51.

The square root of 9473172981 is about 97330.2264509849. The cubic root of 9473172981 is about 2115.9163245494.

The spelling of 9473172981 in words is "nine billion, four hundred seventy-three million, one hundred seventy-two thousand, nine hundred eighty-one".